What is ET-DSP™?
(Top) The Electro-Thermal Dynamic Stripping Process, or ET-DSP™, is an in-situ thermal soil decontamination method that combines the three treatment methods of electrical resistance heating, thermal conduction, and steam / hot water injection. ET-DSP™ takes advantage of the naturally occurring electrically resistive properties of soil by the precise application of electrical current into a contaminated plume producing heat throughout its volume to reach a target temperature defined to be the vapor temperature of the contaminants of concern. The vaporized contaminants can then be mobilized and removed from the soil using vapor extraction techniques.